31
Operation
Salinity, TDS, resistivity measurement
It is necessary to select the required units, refer to Programming, Page 28
4.7 DO channel (membrane sensor)
4.7.1 Connections
Figure 14 DO (membrane) channel
For DO electrode connection (code 60 50) refer to Figure 15.
Figure 15 DO electrode’s connection
4.7.2 Programming
The factory programming of the instrument is the following:
• Measuring units: ppm.
DANGER
Always disconnect power to the instrument when making any electrical connections.
DANGER
Relays: Limit the current up to 3A by using one fuse. Do not connect cables with voltage higher
than 24 V.
1 Dissolved Oxygen (DO) 2 Temperature 3 Common
D.O.
(Membrane)
Relays
DO Sensor (M)
1 2 3
1 Transparent cable: To terminal 1 4 Green cable: To terminal 4
2 Red cable: To terminal 2 5 White cable: To terminal 5
3 Green/Yellow cable: To terminal 7 6 Blue and grey cable: no connection
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